Welcome to Biomass Chemical Engineering,

Biomass Chemical Engineering ›› 2022, Vol. 56 ›› Issue (5): 72-78.doi: 10.3969/j.issn.1673-5854.2022.05.011

• Review Comment • Previous Articles    

Research Progress of Carbon-based Catalysts Applied in Thermal Conversion Process

Xiaopeng SHI1,2,4(), Zhongfeng ZHANG3, Xiaoru WANG1,2, Pan LI1,2,4,*(), Shuqi FANG1,2,4, Chun CHANG1,2,4   

  1. 1. Engineering Laboratory of Henan Province for Coal-based Ecological Fine Chemical, Jiyuan 454650, China
    2. School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China
    3. Huaneng Luoyang Thermal Power Co., Ltd., Luoyang 471000, China
    4. Henan Key Laboratory of Green Manufacturing of Biobased Chemicals, Puyang 457000, China
  • Received:2021-09-17 Online:2022-09-30 Published:2022-09-27
  • Contact: Pan LI E-mail:shixiaopengzzu@163.com;lipanhust@163.com

Abstract:

Biochar had the advantages of environmental friendliness, wide sources, and low cost. It was widely used as catalyst and catalyst carrier in thermal conversion processes, while there were problems such as easy coking and inactivation and the unclear directional regulation mechanism of product. In this paper, the research progress on the application of biomass char-based catalysts for thermal conversion processes was reviewed, and the research status of preparation and modification(heteroatom doping and metal loading) schemes of biomass char-based catalysts were introduced. The application of char-based catalysts was discussed from five aspects: conventional catalytic pyrolysis, microwave-assisted pyrolysis, tar removal, esterification synthesis of transportation fuels, and hydrothermal liquefaction. Exploring the deep catalytic mechanism of catalysts and construct multistage char-based catalysts with multi-stage pore structure for targeted production of high-value chemicals were a future research direction as the future research directions.

Key words: char-based catalysts, catalytic pyrolysis, bio-oil, tar reforming, microwave pyrolysis

CLC Number: